发明名称 |
Integrity check of measured signal trace data |
摘要 |
A method of monitoring signals is disclosed, wherein a plurality of command signals and address signals are consecutively expressed, as a measurement target. The method includes setting a strobe timing that has a predetermined initial value; calculating an error rate by monitoring the plurality of command signals, in accordance with the strobe timing; monitoring the plurality of address signals, and calculating a burst rate from a difference between the consecutive plurality of address signals, in accordance with the strobe timing; identifying timing where the calculated error rate and calculated burst rate are both optimized; and in the event the timing where both the calculated error rate and calculated burst rate are optimized cannot be identified, altering a predetermined value of the set strobe timing, and repeating the calculating, monitoring, and identifying. |
申请公布号 |
US8902694(B2) |
申请公布日期 |
2014.12.02 |
申请号 |
US201314013348 |
申请日期 |
2013.08.29 |
申请人 |
International Business Machines Corporation |
发明人 |
Katayama Yasunao;Munetoh Seiji;Ohba Nobuyuki;Okada Tadayuki;Okazaki Atsuya |
分类号 |
G11C7/00;G06F11/07;G11C8/18;G06F11/30 |
主分类号 |
G11C7/00 |
代理机构 |
Cantor Colburn LLP |
代理人 |
Cantor Colburn LLP ;Zarick Gail |
主权项 |
1. A method of monitoring signals, wherein a plurality of command signals and address signals are consecutively expressed, as a measurement target, the method comprising:
setting a strobe timing that has a predetermined initial value; calculating an error rate by monitoring the plurality of command signals, in accordance with the strobe timing; monitoring the plurality of address signals, and calculating a burst rate from a difference between the consecutive plurality of address signals, in accordance with the strobe timing; identifying timing where the calculated error rate and calculated burst rate are both optimized; and in the event the timing where both the calculated error rate and calculated burst rate are optimized cannot be identified, altering a predetermined value of the set strobe timing, and repeating the calculating, monitoring, and identifying. |
地址 |
Armonk NY US |